feat(samples): Make Android error buttons identifiable in Sentry

[runningcode]

📜 Description

Makes every button on the sample app's Errors tab produce an event that is easy to identify in Sentry.

Previously the events were generic and indistinguishable — for example, two different buttons both threw RuntimeException("Uncaught Exception from Java."), and "Send Message" sent "Some message.". There was no reliable way to tell which button produced which event.

Now each Errors button:

• Tags its event with sample_action=<button key> (reusing the existing SentryTraced keys, e.g. capture_exception, send_message) via a small tagSampleAction() helper, so events can be filtered/grouped in Sentry.
• Uses distinctive text that names the button (e.g. "Send Message button: test message", "Capture Exception button: nested exception").

Buttons whose crash carries no message (Stack Overflow, Out of Memory, Native Crash) are still identifiable via the tag. The native captured message text is likewise renamed to "Native Capture button: native message".

The tag is set on the persistent scope so uncaught crashes still carry it when the crash handler processes them later.

💡 Motivation and Context

When using the sample app to generate test data, it was impossible to correlate a Sentry issue back to the button that triggered it. This makes the sample app far more useful for manually verifying crash/exception/message/breadcrumb/log capture.

Relates to JAVA-631 — this does not complete the Android 17 smoke-test checklist, but makes the crash / native-crash / message verification steps easier to carry out.

💚 How did you test it?

• ./gradlew :sentry-samples:sentry-samples-android:spotlessApply apiDump — clean, no API changes.
• ./gradlew :sentry-samples:sentry-samples-android:assembleDebug — builds successfully (Kotlin + C++ compile).

📝 Checklist

• I added GH Issue ID & Linear ID
• I added tests to verify the changes.
• No new PII added or SDK only sends newly added PII if sendDefaultPII is enabled.
• I updated the docs if needed.
• I updated the wizard if needed.
• Review from the native team if needed.
• No breaking change or entry added to the changelog.
• No breaking change for hybrid SDKs or communicated to hybrid SDKs.

🔮 Next steps

None.

#skip-changelog

[github-actions]

	Messages
📖	Do not forget to update Sentry-docs with your feature once the pull request gets approved.

Generated by 🚫 dangerJS against 3f4df9c

[sentry]

📲 Install Builds

Android

🔗 App Name	App ID	Version	Configuration
SDK Size	io.sentry.tests.size	8.47.0 (1)	release

⚙️ sentry-android Build Distribution Settings

[github-actions]

Performance metrics 🚀

	Plain	With Sentry	Diff
Startup time	339.53 ms	458.38 ms	118.85 ms
Size	0 B	0 B	0 B

Baseline results on branch: main

Startup times

Revision	Plain	With Sentry	Diff
3d205d0	352.15 ms	432.53 ms	80.38 ms
e59e22a	368.02 ms	432.00 ms	63.98 ms
806307f	357.85 ms	424.64 ms	66.79 ms
d364ace	384.53 ms	453.51 ms	68.98 ms
4c04bb8	307.93 ms	362.34 ms	54.41 ms
bb0ff41	312.86 ms	363.78 ms	50.92 ms
91bb874	310.68 ms	359.24 ms	48.56 ms
11f90db	314.26 ms	372.43 ms	58.17 ms
f6cdbf0	314.19 ms	357.59 ms	43.40 ms
8687935	332.52 ms	362.23 ms	29.71 ms

App size

Revision	Plain	With Sentry	Diff
3d205d0	1.58 MiB	2.10 MiB	532.97 KiB
e59e22a	1.58 MiB	2.20 MiB	635.34 KiB
806307f	1.58 MiB	2.10 MiB	533.42 KiB
d364ace	1.58 MiB	2.11 MiB	539.75 KiB
4c04bb8	0 B	0 B	0 B
bb0ff41	0 B	0 B	0 B
91bb874	1.58 MiB	2.13 MiB	559.07 KiB
11f90db	0 B	0 B	0 B
f6cdbf0	0 B	0 B	0 B
8687935	1.58 MiB	2.19 MiB	619.17 KiB

[linear-code]

JAVA-631

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